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Diffstat (limited to 'm4/strtoull.m4')
| -rw-r--r-- | m4/strtoull.m4 | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/m4/strtoull.m4 b/m4/strtoull.m4 new file mode 100644 index 0000000..4f895c7 --- /dev/null +++ b/m4/strtoull.m4 @@ -0,0 +1,62 @@ +# strtoull.m4 serial 10 +dnl Copyright (C) 2002, 2004, 2006, 2008-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_STRTOULL], +[ + AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_CHECK_FUNCS([strtoull]) + if test $ac_cv_func_strtoull = yes; then + AC_CACHE_CHECK([whether strtoull works], + [gl_cv_func_strtoull_works], + [AC_RUN_IFELSE( + [AC_LANG_PROGRAM( + [[#include <stdlib.h>]], + [[int result = 0; + char *term; + /* This test fails on Minix and native Windows. */ + { + const char input[] = "0x"; + (void) strtoull (input, &term, 16); + if (term != input + 1) + result |= 1; + } + /* This test fails on pre-C23 platforms. */ + { + const char input[] = "0b1"; + (void) strtoull (input, &term, 2); + if (term != input + 3) + result |= 2; + } + return result; + ]]) + ], + [gl_cv_func_strtoull_works=yes], + [gl_cv_func_strtoull_works=no], + [case "$host_os" in + # Guess no on native Windows. + mingw*) gl_cv_func_strtoull_works="guessing no" ;; + # Guess no on glibc systems. + *-gnu* | gnu*) gl_cv_func_strtoull_works="guessing no" ;; + # Guess no on musl systems. + *-musl* | midipix*) gl_cv_func_strtoull_works="guessing no" ;; + *) gl_cv_func_strtoull_works="$gl_cross_guess_normal" ;; + esac + ]) + ]) + case "$gl_cv_func_strtoull_works" in + *yes) ;; + *) REPLACE_STRTOULL=1 ;; + esac + else + HAVE_STRTOULL=0 + fi +]) + +# Prerequisites of lib/strtoull.c. +AC_DEFUN([gl_PREREQ_STRTOULL], [ + : +]) |